Fluorine-containing surface treatment agent and an article treated with the same
a surface treatment agent and fluorine-containing technology, applied in the field of fluorine-containing surface treatment agents and articles, can solve the problems of difficult control of the degree of vacuum and the temperature rise rate of the surface treatment agent, and the properties of the coating vary, so as to achieve good water- and oil-repellency and scratch resistance, reduce weight, and reduce weight
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synthesis example 1
[0061]50 Grams of the mixture of 95 mole % of the polymer represented by the formula (1a) and 5 mole % of the polymer represented by the formula (1b) was dissolved in a mixed solvent of 40 g of 1,3-trifluoromethylbenzene and 10 g of tetrahydrofuran. 30 Grams of a 40% solution of sodium bis(2-methoxyethoxy)aluminum hydride in toluene was added dropwise to the mixture and stirred at room temperature for 3 hours, to which an appropriate amount of hydrochloric acid was subsequently added and stirred well to make the mixture neutralized and, then, washed with water. A lower phase was taken out and subjected to distillation to remove the solvents to obtain 40 g of a liquid product. According to 19F-NMR analysis, the product obtained comprised 95 mole % of a polymer represented by the following formula (2a) and 5 mole % of a polymer represented by the following formula (2b).
F3C(OC2F4)(OCF2)p—OCF2CH2OH (2a)
F3C(OC2F4)q(OCF2)p—OCF3 (2b)
(p / q=1.0, a total number of p and q was nearly equal 46...
synthesis example 2
[0063]Subsequently, 30 g of composition A obtained, 20 g of 1,3-trifluoromethylbenzene, 3 g of trimethoxysilane and 0.1 g of a solution of a chloroplatinic acid / vinyl siloxane complex in toluene, containing 2.5×10−8 mole of Pt, were mixed and aged at 70 degrees C for 3 hours. Then, the solvent and unreacted compounds were distilled off under a reduced pressure of 533 Pa at 100 degrees C to obtain 25 g of a liquid product. According to 1H-NMR analysis, the product obtained comprised 95 mole % of a polymer represented by the following formula (1-a) and 5 mole % of a polymer represented by the following formula (1-b), hereinafter called “composition 1-1”.
F3C(OC2F4)q(OCF2)p—OCF2CH2OC3H6Si(OCH3)3 (1-a)
F3C(OC2F4)q(OCF2)p—OCF3 (1-b)
(p / q=1.0, a total number of p and q was nearly equal 46)
[0064]Composition 1-1 was subjected to molecular distillation at 2×10−2 Pa and 180 degrees C to thereby remove low boiling components. The composition obtained is hereinafter called “composition 1-2”. A r...
synthesis example 3
[0067]Grams of composition A, 20 g of 1,3-trifluoromethylbenzene, 10 g of tetramethylcyclotetrasiloxane and 0.1 g of a solution of a chloroplatinic acid / vinyl siloxane complex in toluene, containing 2.5×10−8 mole of Pt, were mixed and aged at 70 degrees C for 3 hours. Then, the solvent and unreacted compounds were distilled off under a reduced pressure. 30 Grams of the mixture obtained, 20 g of 1,3-trifluoromethylbenzene, 3.7 g of allyltrimethoxysilane and 0.1 g of a solution of a chloroplatinic acid / vinyl siloxane complex in toluene, containing 2.5×10−8 mole of Pt, were mixed and aged at 70 degrees C for 2 hours. Then, the solvent and unreacted compounds were distilled off under a reduced pressure of 533 Pa at 100 degrees C to obtain 29 g of a mixture comprising 95 mole % of a polymer represented by the following formula (2-a) and 5 mole % of a polymer represented by the following formula (2-b), hereinafter called “composition 2-1”.
(p / q=1.0, a total number of p and q was nearly equ...
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